add libunwind

Makefile

@@ -41,7 +41,7 @@ out/m4.oci.tgz: \
 	out/gcc.oci.tgz \
 	out/binutils.oci.tgz \
 	out/musl.oci.tgz \
-	out/make.oci.tgz \
+	out/make.oci.tgz
 	docker build -t imgrep/m4 --output type=oci,dest=$@ m4
 
 out/autoconf.oci.tgz: \
@@ -109,6 +109,18 @@ out/libxml2.oci.tgz: \
 	out/libtool.oci.tgz
 	docker build -t imgrep/libxml2 --output type=oci,dest=$@ libxml2
 
+out/libunwind.oci.tgz: \
+	out/busybox.oci.tgz \
+	out/gcc.oci.tgz \
+	out/binutils.oci.tgz \
+	out/musl.oci.tgz \
+	out/make.oci.tgz \
+	out/bash.oci.tgz \
+	out/autoconf.oci.tgz \
+	out/automake.oci.tgz \
+	out/libtool.oci.tgz
+	docker build -t imgrep/libunwind --output type=oci,dest=$@ libunwind
+
 out/openssl.oci.tgz: \
 	out/gcc.oci.tgz \
 	out/binutils.oci.tgz \

libunwind/Dockerfile

@@ -0,0 +1,41 @@
+FROM imgrep/busybox:latest as busybox
+FROM imgrep/gcc:latest as gcc
+FROM imgrep/binutils:latest as binutils
+FROM imgrep/musl:latest as musl
+FROM imgrep/make:latest as make
+FROM imgrep/autoconf:latest as autoconf
+FROM imgrep/automake:latest as automake
+FROM imgrep/libtool:latest as libtool
+
+FROM busybox as build
+ENV SRC_SITE=https://github.com/libunwind/libunwind/releases/download
+ENV SRC_VERSION=1.7.2
+ENV SRC_HASH=a18a6a24307443a8ace7a8acc2ce79fbbe6826cd0edf98d6326d0225d6a5d6e6
+RUN wget ${SRC_SITE}/v${SRC_VERSION}/libunwind-${SRC_VERSION}.tar.gz
+RUN echo "${SRC_HASH}  libunwind-${SRC_VERSION}.tar.gz" | sha256sum -c
+RUN tar -xf libunwind-${SRC_VERSION}.tar.gz
+WORKDIR libunwind-${SRC_VERSION}
+COPY --from=gcc . /
+COPY --from=binutils . /
+COPY --from=make . /
+COPY --from=musl . /
+COPY --from=autoconf . /
+COPY --from=automake . /
+COPY --from=libtool . /
+#LDFLAGS="-lucontext" CFLAGS="-fno-stack-protector" \
+RUN set -eux; \
+    ./configure \
+        --build=x86_64-unknown-linux-musl \
+        --host=x86_64-unknown-linux-musl \
+        --prefix=/usr \
+        --sysconfdir=/etc \
+        --mandir=/usr/share/man \
+        --localstatedir=/usr/share/man \
+        --enable-cxx-exceptions \
+        --disable-tests \
+        --infodir=/usr/share/info; \
+    make;
+RUN make DESTDIR=/home/user/rootfs install
+
+FROM scratch
+COPY --from=build /home/user/rootfs /